"I was just so angry, because you can get injured," said the Russian, who fell in the first set as she rushed to the net to retrieve a drop shot, but couldn't slide.

Earlier, Jankovic began her defense of the Rome title with a 6-3, 7-6 (6) win over Gisela Dulko. The match was suspended for about three and a half hours due to rain.

In other matches, seventh-seeded Svetlana Kuznetsova beat Daniela Hantuchova 6-3, 6-3, and eighth-seeded Nadia Petrova beat Carla Suarez Navarro 6-2, 3-6, 6-3.

Caroline Wozniacki, Flavia Pennetta and Kaia Kanepi also advanced, while 11th-seeded Marion Bartoli and Alize Cornet were both upset.

The 13th-seeded Cornet, last year's runner-up, lost 6-4, 6-1 to Kateryna Bondarenko, and Maria Jose Martinez Sanchez beat Bartoli 6-1, 7-5.

【体坛英语资讯：Serena Williams out of Rome Masters】相关文章：

★ 体坛英语资讯：China bows out with head held high

★ 娱乐英语资讯：Christina Aguilera reveals baby son pics

★ 体坛英语资讯：Champion stunned but China unbeaten at Magdeburg World Cup

★ 娱乐英语资讯：Brangelina ready for another kid

★ 体坛英语资讯：Big net cast for Chinese tennis champs

★ 体坛英语资讯：10-man Bayern beat Bochum to go closer to title

★ 体坛英语资讯：Powell lowers world 100m record to 9.74 sec

★ 娱乐英语资讯：Jodie Foster to get leadership award

★ 体坛英语资讯：Yi starts new life in Milwaukee

★ 娱乐英语资讯：Malawin court delays Madonna adoption case hearing